MCP tool
web_search_exa
web_search_exa is a tool name used by 2 different MCP servers. They are not necessarily the same tool — here is what each one does.
2 MCP servers expose a web_search_exa tool: exa and oassis — web scraping, crawling and browser control for AI agents. Their input schemas differ, so compare them below before picking one.
Servers exposing web_search_exa
From the publisher:Search the web for any topic and get clean, ready-to-use content. Best for: Finding current information, news, facts, people, companies, or answering questions about any topic. Returns: Clean text content from top search results. Query tips: describe the ideal page, not keywords. "blog post comparing React and Vue performance" not "React vs Vue". Use category:people / category:company to search th
Install exa →Parameter Type Description query*string Natural language search query. Should be a semantically rich description of the ideal page, not just keywords. Optionally include category:<type> (company, people) to focus results — e.g. 'category:pe numResultsnumber Number of search results to return (default: 10). objective*string Goal for this search turn; say which documents should rank first, which should be excluded, and what specific facts or figures to pull from them. From the publisher:Search the web with Exa's index: a query instead of a url, for when you do not know where to look. Returns title, url and a snippet per result. To read the pages, pass the urls to web_scrape_batch. The engine is named because the price is Exa's, passed through with no markup and read from its own payment challenge on every call — the quote is read at execution time and is not a guaranteed fixed pr
Install oassis — web scraping, crawling and browser control for AI agents →Parameter Type Description query*string What to search for. limitinteger Results to return. Up to 50. snippetsboolean Text alongside each result. On by default: a bare url is rarely enough. domainsarray Only these domains, subdomains included: `example.com` also matches `docs.example.com`. excludeDomainsarray Never these domains, subdomains included. sincestring Only results published after this ISO date.
Tool lists are read from the live servers (or, for packaged servers, from their documentation) each morning, so this reflects what they exposed at the last refresh. Search all tools.